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Federson

Federson

Active Member
Hey guys I've been lurking a bit, I have an old armoire I was going to turn into a small grow cabinet. It's about 1.5ft x 2.5ft x 4ft. I just plan on growing a plant or two for personal use.

My question, is a HLG-60H-C700B going to run two CREE CXB3590 3500K's and is this enough light for the area for veg and flowering? I'm just trying to double check with more knowledgeable people before I drop money on these parts.
 
Isawthelight

Isawthelight

Well-Known Member
Federson said:
Hey guys I've been lurking a bit, I have an old armoire I was going to turn into a small grow cabinet. It's about 1.5ft x 2.5ft x 4ft. I just plan on growing a plant or two for personal use.

My question, is a HLG-60H-C700B going to run two CREE CXB3590 3500K's and is this enough light for the area for veg and flowering? I'm just trying to double check with more knowledgeable people before I drop money on these parts.
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That's less than 25 watts per square foot. Three 3590's would squeeze the full 70 watts from a HLG-6--C700B. https://www.rollitup.org/t/matching-drivers-and-cobs.883866/
 
Danielson999

Danielson999

Well-Known Member
Federson said:
Hey guys I've been lurking a bit, I have an old armoire I was going to turn into a small grow cabinet. It's about 1.5ft x 2.5ft x 4ft. I just plan on growing a plant or two for personal use.

My question, is a HLG-60H-C700B going to run two CREE CXB3590 3500K's and is this enough light for the area for veg and flowering? I'm just trying to double check with more knowledgeable people before I drop money on these parts.
Click to expand...
For vegging yeah...but for flowering those 2 cobs at 50w each would give you 26watts per sqft. 3 of those cobs with an HLG-120-1400 would be 40watts per sqft.
grow1.jpg
 
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Federson

Federson

Active Member
Isawthelight said:
That's less than 25 watts per square foot. Three 3590's would squeeze the full 70 watts from a HLG-6--C700B. https://www.rollitup.org/t/matching-drivers-and-cobs.883866/
Click to expand...
Danielson999 said:
For vegging yeah...but for flowering those 2 cobs at 50w each would give you 26watts per sqft. 3 of those cobs with an HLG-120-1400 would be 40watts per sqft.
View attachment 3603585
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Okay thanks for the fast replies!

Last question: if I get a 2ft X 5.88inch heat sink from heatsinksusa and mounted the LEDs to it with thermal adhesive, would I be able to get away with passive cooling (provided my cabinet has decent airflow), or would I need to attach PC fans to it?
 
SnuskSam

SnuskSam

Member
SnuskSam said:
After a few weeks of info-farming i've become an understander of this DIY-led porn industries.
As always there's a but..
To consider: 60x60cm space that later on will become 75x75cm.
In this space i would love to be able to have 6x cxb3590's.
Since we are in the high w numbers of the space, a B (dimable) driver version is the one for me.
What i have a problem understanding, is due to my grid (230v 50z) how am i choosing the right driver?
Cooling options: is there anything else than active due to the cm2 limitations?
While going active, i have the same problem choosing driver due to my grid.
So with active cooling, do i aim for high effect on plants or efficiency?
Fan options for active: i've seen these! complete with alu heatsink, less part assembly probs.
Any options that will fit my plans better?
Lens: The white angelina looking 90degr cup. probably the cob+holder+cup package from Jerry at KB.

When i expand to 75cm..
Should i go 4 cobs now and add 2 later on? (just an idea)
Distans from plants to light source? i know the spread, but can i get too close? like HPS burns/bleeches?

I see a lot of known names in this thread, thank you who ever spends time answering my ????
Hopefully all the "read more, search more" comments can spare server GB space.
Click to expand...

No feedback at ALL means?...
 
Airwalker16

Airwalker16

Well-Known Member
Federson said:
Okay thanks for the fast replies!

Last question: if I get a 2ft X 5.88inch heat sink from heatsinksusa and mounted the LEDs to it with thermal adhesive, would I be able to get away with passive cooling (provided my cabinet has decent airflow), or would I need to attach PC fans to it?
Click to expand...
If you're worried, use fans. It's $10 for the fans and $5 for an apv 12-12
 
frica

frica

Well-Known Member
Federson said:
Okay thanks for the fast replies!

Last question: if I get a 2ft X 5.88inch heat sink from heatsinksusa and mounted the LEDs to it with thermal adhesive, would I be able to get away with passive cooling (provided my cabinet has decent airflow), or would I need to attach PC fans to it?
Click to expand...
3 CXB3590s 36v at 1.4A?
Would handle it passively easily.
 
Fastslappy

Fastslappy

Well-Known Member
tomse lekt said:
Or may be someone knows a fan driver, for 3x arctic F8 (0.16A/ +12V DC), that would fit?
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A Wall Wart will work just fine for your fans look for a 12v output that has at least 1 amp even a 1/2 amp will work for 3 fans
see the math your fan pulls 1/16 of a amp
 
P

pabi

Member
Hey
I'm growing in a 80x80x160cm (2.6x2.6x5,3ft) tent, 9 platns at a time in 11L pots. I was using a 400Watt MH/HPS with a cooltube and want to switch to a DIY LED.
How many Cree CXB3590s or CXB3070s would you recommend for that size?
 
luv2grow

luv2grow

Well-Known Member
quick parts list before i buy for this build.
1 mean hlg240h-1400
driving 6 cree3590 36v
My math says it will work. Any issues here?
 
Fastslappy

Fastslappy

Well-Known Member
luv2grow said:
quick parts list before i buy for this build.
1 mean hlg240h-1400
driving 6 cree3590 36v
My math says it will work. Any issues here?
Click to expand...
I might be wrong but @1400 yer using 50 watts per cob
And a 240 is 250 watts
so my math says no ? 5 works IIRC for a 240 series @ 250 watts & 4 works for a 185 series meanwell @ 200 watts
that's 56% effient iirc on both setups @ 1400 ah
 
luv2grow

luv2grow

Well-Known Member
Fastslappy said:
I might be wrong but @1400 yer using 50 watts per cob
And a 240 is 250 watts
so my math says no ? 5 works IIRC for a 240 series @ 250 watts & 4 works for a 185 series meanwell @ 200 watts
that's 56% effient iirc on both setups @ 1400 ah
Click to expand...
Thanks for the response! that's why i ask first and buy later.
 
questiondj42

questiondj42

Well-Known Member
Let's say you were going to light a 4x4 area. You've already got 2 TimberLED 3K 3590s but want to add moar and do it DIY. 3590s would be the choice, but how many? Seems there are a few driver options too. Let's say, most ideal setup mid 50s in the efficiency range? 2 4 COB strips in addition?
 
A

AlexS12e

Member
working on building led with 3590's with 3500K. i see 2 step and 3 step 3590's on Mouser and Digi Key I don't understand the difference and what people are using.
Thanks for any help on this - they are not cheap and I don't want to order the wrong ones
 
Fastslappy

Fastslappy

Well-Known Member
AlexS12e said:
working on building led with 3590's with 3500K. i see 2 step and 3 step 3590's on Mouser and Digi Key I don't understand the difference and what people are using.
Thanks for any help on this - they are not cheap and I don't want to order the wrong ones
Click to expand...
best price is outta China (alibaba) or the AU @ Cutter Electronics
they also have the highest bins as well
see this thread for Cutter https://www.rollitup.org/t/cree-cxb-at-discounted-prices.892295/
 
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